linux-kernel - Re: 2.6.19-rc5: known regressions (v3)

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Message-ID: <45649166.8060209@redhat.com>
Date:	Wed, 22 Nov 2006 13:05:26 -0500
From:	William Cohen <wcohen@...hat.com>
To:	Eric Dumazet <dada1@...mosbay.com>
CC:	Adrian Bunk <bunk@...sta.de>, Andrew Morton <akpm@...l.org>,
	Len Brown <len.brown@...el.com>, phil.el@...adoo.fr,
	gregkh@...e.de,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...e.de>, Ingo Molnar <mingo@...hat.com>,
	oprofile-list@...ts.sourceforge.net,
	Stephen Hemminger <shemminger@...l.org>
Subject: Re: 2.6.19-rc5: known regressions (v3)

Eric Dumazet wrote:
> On Wednesday 15 November 2006 11:35, Eric Dumazet wrote:
> 
>>On Wednesday 15 November 2006 11:21, Adrian Bunk wrote:
>>
>>>Subject    : x86_64: oprofile doesn't work
>>>References : http://lkml.org/lkml/2006/10/27/3
>>>Submitter  : Prakash Punnoor <prakash@...noor.de>
>>>Status     : unknown
>>
> 
> I hit the same problem on i386 architecture too, if CONFIG_ACPI is not set.
> 
> # opcontrol --setup --event=RESOURCE_STALLS:1000 --vmlinux=$VMFILE
> # opcontrol --start
> /usr/bin/opcontrol: line 911: /dev/oprofile/0/enabled: No such file or 
> directory
> /usr/bin/opcontrol: line 911: /dev/oprofile/0/event: No such file or directory
> /usr/bin/opcontrol: line 911: /dev/oprofile/0/count: No such file or directory
> /usr/bin/opcontrol: line 911: /dev/oprofile/0/kernel: No such file or 
> directory
> /usr/bin/opcontrol: line 911: /dev/oprofile/0/user: No such file or directory
> /usr/bin/opcontrol: line 911: /dev/oprofile/0/unit_mask: No such file or 
> directory
> Using 2.6+ OProfile kernel interface.
> Reading module info.
> Using log file /var/lib/oprofile/oprofiled.log
> Daemon started.
> Profiler running.
> 
> # ls -l /dev/oprofile/
> total 0
> drwxr-xr-x 1 root root 0 Nov 22 11:18 1
> -rw-r--r-- 1 root root 0 Nov 22 11:18 backtrace_depth
> -rw-r--r-- 1 root root 0 Nov 22 11:18 buffer
> -rw-r--r-- 1 root root 0 Nov 22 11:18 buffer_size
> -rw-r--r-- 1 root root 0 Nov 22 11:18 buffer_watershed
> -rw-r--r-- 1 root root 0 Nov 22 11:18 cpu_buffer_size
> -rw-r--r-- 1 root root 0 Nov 22 11:18 cpu_type
> -rw-rw-rw- 1 root root 0 Nov 22 11:18 dump
> -rw-r--r-- 1 root root 0 Nov 22 11:18 enable
> -rw-r--r-- 1 root root 0 Nov 22 11:18 pointer_size
> drwxr-xr-x 1 root root 0 Nov 22 11:18 stats
> # dmesg | grep oprofile
> oprofile: using NMI interrupt.
> # opcontrol --version
> opcontrol: oprofile 0.9.2 compiled on Nov 22 2006 11:24:09
> 
> Eric

You will also need another patch checked into the oprofile cvs last week mentioned:

http://sourceforge.net/mailarchive/message.php?msg_id=35422937

-Will


View attachment "opalloc.diff" of type "text/x-patch" (539 bytes)